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<a href="_templated_vocabulary_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#ifndef __D_T_TEMPLATED_VOCABULARY__</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#define __D_T_TEMPLATED_VOCABULARY__</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;cassert&gt;</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;numeric&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &lt;fstream&gt;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#include &lt;opencv2/core/core.hpp&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;limits&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_feature_vector_8h.html">FeatureVector.h</a>&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_bow_vector_8h.html">BowVector.h</a>&quot;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_scoring_object_8h.html">ScoringObject.h</a>&quot;</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &quot;../DUtils/Random.h&quot;</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_d_bo_w2.html">DBoW2</a> {</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html">   44</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary</a></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;{       </div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  </div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary</a>(<span class="keywordtype">int</span> k = 10, <span class="keywordtype">int</span> L = 5, </div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a> weighting = <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aaa3425e88466862008dff6883e07e205d">TF_IDF</a>, <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a> scoring = <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a2df432e58efd2a13d4950ee96aa6a20f">L1_NORM</a>);</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;  </div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary</a>(<span class="keyword">const</span> std::string &amp;filename);</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;  </div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *filename);</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  </div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary</a>(<span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary&lt;TDescriptor, F&gt;</a> &amp;voc);</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  </div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary</a>();</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;  </div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary&lt;TDescriptor, F&gt;</a>&amp; operator=(</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary&lt;TDescriptor, F&gt;</a> &amp;voc);</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  </div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> create</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    (<span class="keyword">const</span> std::vector&lt;std::vector&lt;TDescriptor&gt; &gt; &amp;training_features);</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;  </div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> create</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    (<span class="keyword">const</span> std::vector&lt;std::vector&lt;TDescriptor&gt; &gt; &amp;training_features, </div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;      <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> L);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> create</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    (<span class="keyword">const</span> std::vector&lt;std::vector&lt;TDescriptor&gt; &gt; &amp;training_features,</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;      <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> L, <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a> weighting, <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a> scoring);</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size() <span class="keyword">const</span>;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;  </div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> empty() <span class="keyword">const</span>;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> transform(<span class="keyword">const</span> std::vector&lt;TDescriptor&gt;&amp; features, <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;v) </div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <span class="keyword">const</span>;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;  </div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> transform(<span class="keyword">const</span> std::vector&lt;TDescriptor&gt;&amp; features,</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;v, <a class="code" href="class_d_bo_w2_1_1_feature_vector.html">FeatureVector</a> &amp;fv, <span class="keywordtype">int</span> levelsup) <span class="keyword">const</span>;</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> transform(<span class="keyword">const</span> TDescriptor&amp; feature) <span class="keyword">const</span>;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  </div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">double</span> score(<span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;a, <span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;b) <span class="keyword">const</span>;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;  </div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> getParentNode(<a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> wid, <span class="keywordtype">int</span> levelsup) <span class="keyword">const</span>;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;  </div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <span class="keywordtype">void</span> getWordsFromNode(<a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> nid, std::vector&lt;WordId&gt; &amp;words) <span class="keyword">const</span>;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;  </div><div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a027d367760c39de816bee5ff0d969837">  185</a></span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a027d367760c39de816bee5ff0d969837">getBranchingFactor</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_k; }</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;  </div><div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a5a7d1b3ad0c705705d516a9a144e3f38">  191</a></span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a5a7d1b3ad0c705705d516a9a144e3f38">getDepthLevels</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_L; }</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;  </div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;  <span class="keywordtype">float</span> getEffectiveLevels() <span class="keyword">const</span>;</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;  </div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> TDescriptor getWord(<a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> wid) <span class="keyword">const</span>;</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;  </div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;  <span class="keyword">virtual</span> <span class="keyword">inline</span> <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> getWordWeight(<a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> wid) <span class="keyword">const</span>;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;  </div><div class="line"><a name="l00217"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#aadb9343da87e0f00ed3da401c59132b2">  217</a></span>&#160;  <span class="keyword">inline</span> <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aadb9343da87e0f00ed3da401c59132b2">getWeightingType</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_weighting; }</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;  </div><div class="line"><a name="l00223"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#ad830e1e3e547e5d9d45971662afca3d5">  223</a></span>&#160;  <span class="keyword">inline</span> <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ad830e1e3e547e5d9d45971662afca3d5">getScoringType</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_scoring; }</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;  </div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">void</span> setWeightingType(<a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a> type);</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160; 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 </div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;  <span class="keywordtype">void</span> <a class="code" href="namespaceboost_1_1serialization.html#a2461caecae62258618693b30f87de9d9">save</a>(<span class="keyword">const</span> std::string &amp;filename) <span class="keyword">const</span>;</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;  </div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;  <span class="keywordtype">void</span> <a class="code" href="namespaceboost_1_1serialization.html#a8f2eb183bf258e6d6cf94377d38decfc">load</a>(<span class="keyword">const</span> std::string &amp;filename);</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;  </div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="namespaceboost_1_1serialization.html#a2461caecae62258618693b30f87de9d9">save</a>(cv::FileStorage &amp;fs, </div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160; 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 }</div><div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;}</div><div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;</div><div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;</div><div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l00501"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a05a6c2f46184618c9ea8368f53e6980c">  501</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary&lt;TDescriptor,F&gt;::setScoringType</a>(<a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a> type)</div><div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;{</div><div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160; 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       (int)((pow((<span class="keywordtype">double</span>)<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a>, (<span class="keywordtype">double</span>)<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a> + 1) - 1)/(m_k - 1));</div><div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;</div><div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.reserve(expected_nodes); <span class="comment">// avoid allocations when creating the tree</span></div><div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;  </div><div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;  </div><div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;  vector&lt;pDescriptor&gt; features;</div><div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ace8155a70fa5163d117dc6a2ef923205">getFeatures</a>(training_features, features);</div><div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;</div><div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;</div><div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;  <span class="comment">// create root  </span></div><div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.push_back(<a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html">Node</a>(0)); <span class="comment">// root</span></div><div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;  </div><div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;  <span class="comment">// create the tree</span></div><div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ab79623d30a8550414e1f4bf916869f05">HKmeansStep</a>(0, features, 1);</div><div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;</div><div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;  <span class="comment">// create the words</span></div><div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a9b74d107b7dc6142cbed4e6ef44a8519">createWords</a>();</div><div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;</div><div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;  <span class="comment">// and set the weight of each node of the tree</span></div><div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#af7bf0ecd2d1ecc7d31ddca3aa7d1ddc8">setNodeWeights</a>(training_features);</div><div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;  </div><div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;}</div><div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;</div><div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;</div><div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l00593"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a94d48231b043a1102af4c35e256f2054">  593</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3679b5a8f2043021a4faab99ccfe4ebe">TemplatedVocabulary&lt;TDescriptor,F&gt;::create</a>(</div><div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160;  <span class="keyword">const</span> std::vector&lt;std::vector&lt;TDescriptor&gt; &gt; &amp;training_features,</div><div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;  <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> L)</div><div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;{</div><div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a> = k;</div><div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a> = L;</div><div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;  </div><div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3679b5a8f2043021a4faab99ccfe4ebe">create</a>(training_features);</div><div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;}</div><div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;</div><div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;</div><div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l00606"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1e4a3e90f4aa1e6b6ea4d7491c223fd4">  606</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3679b5a8f2043021a4faab99ccfe4ebe">TemplatedVocabulary&lt;TDescriptor,F&gt;::create</a>(</div><div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;  <span class="keyword">const</span> std::vector&lt;std::vector&lt;TDescriptor&gt; &gt; &amp;training_features,</div><div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;  <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> L, <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a> weighting, <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a> scoring)</div><div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;{</div><div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a> = k;</div><div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a> = L;</div><div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#abf03c6430d630674ddca5bab9c120c51">m_weighting</a> = weighting;</div><div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a89d8aa037f2b5c3c5cc953734bb5cb9f">m_scoring</a> = scoring;</div><div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3244d5a3d0f75ba9c9ae905c5365335d">createScoringObject</a>();</div><div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;  </div><div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3679b5a8f2043021a4faab99ccfe4ebe">create</a>(training_features);</div><div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;}</div><div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;</div><div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;</div><div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l00622"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#ace8155a70fa5163d117dc6a2ef923205">  622</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ace8155a70fa5163d117dc6a2ef923205">TemplatedVocabulary&lt;TDescriptor,F&gt;::getFeatures</a>(</div><div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;  <span class="keyword">const</span> vector&lt;vector&lt;TDescriptor&gt; &gt; &amp;training_features, </div><div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160;  vector&lt;pDescriptor&gt; &amp;features)<span class="keyword"> const</span></div><div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;  features.resize(0);</div><div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160;  </div><div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;  <span class="keyword">typename</span> vector&lt;vector&lt;TDescriptor&gt; &gt;::const_iterator vvit;</div><div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;  <span class="keyword">typename</span> vector&lt;TDescriptor&gt;::const_iterator vit;</div><div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160; 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   </div><div class="line"><a name="l00676"></a><span class="lineno">  676</span>&#160;    <span class="keywordtype">bool</span> first_time = <span class="keyword">true</span>;</div><div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;    <span class="keywordtype">bool</span> goon = <span class="keyword">true</span>;</div><div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;    </div><div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;    <span class="comment">// to check if clusters move after iterations</span></div><div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;    vector&lt;int&gt; last_association, current_association;</div><div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;</div><div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160;    <span class="keywordflow">while</span>(goon)</div><div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;    {</div><div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160;      <span class="comment">// 1. Calculate clusters</span></div><div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;</div><div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;            <span class="keywordflow">if</span>(first_time)</div><div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160;            {</div><div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;        <span class="comment">// random sample </span></div><div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;        <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3915e44667d32130e17791147730b7da">initiateClusters</a>(descriptors, clusters);</div><div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;      }</div><div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;      <span class="keywordflow">else</span></div><div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160;      {</div><div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;        <span class="comment">// calculate cluster centres</span></div><div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;</div><div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;        <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> c = 0; c &lt; clusters.size(); ++c)</div><div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;        {</div><div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;          vector&lt;pDescriptor&gt; cluster_descriptors;</div><div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;          cluster_descriptors.reserve(groups[c].<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a8baad280d6daf74ee43d7cd911363137">size</a>());</div><div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160;          </div><div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;          <span class="comment">/*</span></div><div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160;<span class="comment">          for(unsigned int d = 0; d &lt; descriptors.size(); ++d)</span></div><div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;<span class="comment">          {</span></div><div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160;<span class="comment">            if( assoc.find&lt;unsigned char&gt;(c, d) )</span></div><div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;<span class="comment">            {</span></div><div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;<span class="comment">              cluster_descriptors.push_back(descriptors[d]);</span></div><div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;<span class="comment">            }</span></div><div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;<span class="comment">          }</span></div><div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;<span class="comment">          */</span></div><div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;          </div><div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;          vector&lt;unsigned int&gt;::const_iterator vit;</div><div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;          <span class="keywordflow">for</span>(vit = groups[c].begin(); vit != groups[c].end(); ++vit)</div><div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;          {</div><div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;            cluster_descriptors.push_back(descriptors[*vit]);</div><div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160;          }</div><div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;          </div><div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;          </div><div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;          F::meanValue(cluster_descriptors, clusters[c]);</div><div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;        }</div><div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;        </div><div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;      } <span class="comment">// if(!first_time)</span></div><div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;</div><div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;      <span class="comment">// 2. Associate features with clusters</span></div><div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;</div><div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160;      <span class="comment">// calculate distances to cluster centers</span></div><div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;      groups.clear();</div><div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160;      groups.resize(clusters.size(), vector&lt;unsigned int&gt;());</div><div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;      current_association.resize(descriptors.size());</div><div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;</div><div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;      <span class="comment">//assoc.clear();</span></div><div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160;</div><div class="line"><a name="l00731"></a><span class="lineno">  731</span>&#160;      <span class="keyword">typename</span> vector&lt;pDescriptor&gt;::const_iterator fit;</div><div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;      <span class="comment">//unsigned int d = 0;</span></div><div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;      <span class="keywordflow">for</span>(fit = descriptors.begin(); fit != descriptors.end(); ++fit)<span class="comment">//, ++d)</span></div><div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;      {</div><div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;        <span class="keywordtype">double</span> best_dist = F::distance(*(*fit), clusters[0]);</div><div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> icluster = 0;</div><div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;        </div><div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;        <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> c = 1; c &lt; clusters.size(); ++c)</div><div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;        {</div><div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;          <span class="keywordtype">double</span> dist = F::distance(*(*fit), clusters[c]);</div><div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;          <span class="keywordflow">if</span>(dist &lt; best_dist)</div><div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;          {</div><div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160;            best_dist = dist;</div><div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;            icluster = c;</div><div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;          }</div><div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;        }</div><div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;</div><div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;        <span class="comment">//assoc.ref&lt;unsigned char&gt;(icluster, d) = 1;</span></div><div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160;</div><div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160;        groups[icluster].push_back(fit - descriptors.begin());</div><div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;        current_association[ fit - descriptors.begin() ] = icluster;</div><div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;      }</div><div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;      </div><div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;      <span class="comment">// kmeans++ ensures all the clusters has any feature associated with them</span></div><div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160;</div><div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;      <span class="comment">// 3. check convergence</span></div><div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;      <span class="keywordflow">if</span>(first_time)</div><div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;      {</div><div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;        first_time = <span class="keyword">false</span>;</div><div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;      }</div><div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;      <span class="keywordflow">else</span></div><div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;      {</div><div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;        <span class="comment">//goon = !eqUChar(last_assoc, assoc);</span></div><div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;        </div><div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160; 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       }</div><div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;      }</div><div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;</div><div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160;            <span class="keywordflow">if</span>(goon)</div><div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;            {</div><div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;                <span class="comment">// copy last feature-cluster association</span></div><div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160;                last_association = current_association;</div><div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;                <span class="comment">//last_assoc = assoc.clone();</span></div><div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;            }</div><div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;            </div><div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;        } <span class="comment">// while(goon)</span></div><div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;    </div><div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;  } <span class="comment">// if must run kmeans</span></div><div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;  </div><div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;  <span class="comment">// create nodes</span></div><div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;  <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; clusters.size(); ++i)</div><div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;  {</div><div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> <span class="keywordtype">id</span> = <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.size();</div><div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160; 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 }</div><div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160;  </div><div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;  <span class="comment">// go on with the next level</span></div><div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;  <span class="keywordflow">if</span>(current_level &lt; <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a>)</div><div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;  {</div><div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;    <span class="comment">// iterate again with the resulting clusters</span></div><div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;    <span class="keyword">const</span> vector&lt;NodeId&gt; &amp;children_ids = <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[parent_id].children;</div><div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160; 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 (<span class="keyword">const</span> vector&lt;pDescriptor&gt; &amp;descriptors, vector&lt;TDescriptor&gt; &amp;clusters) <span class="keyword">const</span></div><div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;{</div><div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa4c94955c7e03ec39fc0d9b9ce60009f">initiateClustersKMpp</a>(descriptors, clusters);  </div><div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160;}</div><div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;</div><div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;</div><div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l00834"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa4c94955c7e03ec39fc0d9b9ce60009f">  834</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa4c94955c7e03ec39fc0d9b9ce60009f">TemplatedVocabulary&lt;TDescriptor,F&gt;::initiateClustersKMpp</a>(</div><div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;  <span class="keyword">const</span> vector&lt;pDescriptor&gt; &amp;pfeatures, vector&lt;TDescriptor&gt; &amp;clusters)<span class="keyword"> const</span></div><div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160;  <span class="comment">// Implements kmeans++ seeding algorithm</span></div><div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160;  <span class="comment">// Algorithm:</span></div><div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;  <span class="comment">// 1. Choose one center uniformly at random from among the data points.</span></div><div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;  <span class="comment">// 2. For each data point x, compute D(x), the distance between x and the nearest </span></div><div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;  <span class="comment">//    center that has already been chosen.</span></div><div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;  <span class="comment">// 3. Add one new data point as a center. Each point x is chosen with probability </span></div><div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;  <span class="comment">//    proportional to D(x)^2.</span></div><div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;  <span class="comment">// 4. Repeat Steps 2 and 3 until k centers have been chosen.</span></div><div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;  <span class="comment">// 5. Now that the initial centers have been chosen, proceed using standard k-means </span></div><div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;  <span class="comment">//    clustering.</span></div><div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;</div><div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160;  <a class="code" href="class_d_utils_1_1_random.html#a168e77d82ce1e66c6759e97ef27adbbc">DUtils::Random::SeedRandOnce</a>();</div><div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;</div><div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;  clusters.resize(0);</div><div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;  clusters.reserve(<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a>);</div><div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;  vector&lt;double&gt; min_dists(pfeatures.size(), std::numeric_limits&lt;double&gt;::max());</div><div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;  </div><div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;  <span class="comment">// 1.</span></div><div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;  </div><div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;  <span class="keywordtype">int</span> ifeature = <a class="code" href="class_d_utils_1_1_random.html#aa25012101ecbca54025d5430bcf93d86">DUtils::Random::RandomInt</a>(0, pfeatures.size()-1);</div><div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;  </div><div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;  <span class="comment">// create first cluster</span></div><div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;  clusters.push_back(*pfeatures[ifeature]);</div><div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;</div><div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;  <span class="comment">// compute the initial distances</span></div><div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;  <span class="keyword">typename</span> vector&lt;pDescriptor&gt;::const_iterator fit;</div><div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;  vector&lt;double&gt;::iterator dit;</div><div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;  dit = min_dists.begin();</div><div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;  <span class="keywordflow">for</span>(fit = pfeatures.begin(); fit != pfeatures.end(); ++fit, ++dit)</div><div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;  {</div><div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;    *dit = F::distance(*(*fit), clusters.back());</div><div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;  }  </div><div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;</div><div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;  <span class="keywordflow">while</span>((<span class="keywordtype">int</span>)clusters.size() &lt; <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a>)</div><div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;  {</div><div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;    <span class="comment">// 2.</span></div><div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;    dit = min_dists.begin();</div><div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;    <span class="keywordflow">for</span>(fit = pfeatures.begin(); fit != pfeatures.end(); ++fit, ++dit)</div><div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160;    {</div><div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;      <span class="keywordflow">if</span>(*dit &gt; 0)</div><div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;      {</div><div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;        <span class="keywordtype">double</span> dist = F::distance(*(*fit), clusters.back());</div><div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;        <span class="keywordflow">if</span>(dist &lt; *dit) *dit = dist;</div><div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;      }</div><div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;    }</div><div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;    </div><div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;    <span class="comment">// 3.</span></div><div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;    <span class="keywordtype">double</span> dist_sum = std::accumulate(min_dists.begin(), min_dists.end(), 0.0);</div><div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;</div><div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160; 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 <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.resize(0);</div><div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;  </div><div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;  <span class="keywordflow">if</span>(!<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.empty())</div><div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;  {</div><div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.reserve( (<span class="keywordtype">int</span>)pow((<span class="keywordtype">double</span>)<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a>, (<span class="keywordtype">double</span>)<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a>) );</div><div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;</div><div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160; 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     <span class="keywordflow">for</span>(fit = mit-&gt;begin(); fit &lt; mit-&gt;end(); ++fit)</div><div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160;      {</div><div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;        <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> word_id;</div><div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;        <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">transform</a>(*fit, word_id);</div><div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;</div><div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;        <span class="keywordflow">if</span>(!counted[word_id])</div><div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160;        {</div><div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160; 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     <span class="keywordflow">if</span>(Ni[i] &gt; 0)</div><div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;      {</div><div class="line"><a name="l00991"></a><span class="lineno">  991</span>&#160;        <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>[i]-&gt;weight = log((<span class="keywordtype">double</span>)NDocs / (<span class="keywordtype">double</span>)Ni[i]);</div><div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;      }<span class="comment">// else // This cannot occur if using kmeans++</span></div><div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160;    }</div><div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;  </div><div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;  }</div><div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;</div><div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160;}</div><div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;</div><div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160;</div><div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01002"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a8baad280d6daf74ee43d7cd911363137"> 1002</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a8baad280d6daf74ee43d7cd911363137">TemplatedVocabulary&lt;TDescriptor,F&gt;::size</a>()<span class="keyword"> const</span></div><div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160; 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 <span class="keywordflow">return</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.empty();</div><div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160;}</div><div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;</div><div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;</div><div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01018"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#ae67da4c7b30c15ed4faba2ad6ed4549e"> 1018</a></span>&#160;<span class="keywordtype">float</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ae67da4c7b30c15ed4faba2ad6ed4549e">TemplatedVocabulary&lt;TDescriptor,F&gt;::getEffectiveLevels</a>()<span class="keyword"> const</span></div><div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;  <span class="keywordtype">long</span> sum = 0;</div><div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160;  <span class="keyword">typename</span> std::vector&lt;Node*&gt;::const_iterator wit;</div><div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160;  <span class="keywordflow">for</span>(wit = <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.begin(); wit != <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.end(); ++wit)</div><div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160;  {</div><div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;    <span class="keyword">const</span> <a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html">Node</a> *p = *wit;</div><div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160;    </div><div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;    <span class="keywordflow">for</span>(; p-&gt;<a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a62fb0c85332741c114110463252c64e9">id</a> != 0; sum++) p = &amp;<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[p-&gt;<a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a082fba9dcf272b78354ffd5b1d58f5fa">parent</a>];</div><div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160;  }</div><div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160;  </div><div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160;  <span class="keywordflow">return</span> (<span class="keywordtype">float</span>)((double)sum / (<span class="keywordtype">double</span>)<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.size());</div><div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;}</div><div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160;</div><div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;</div><div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01035"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3f0d8b15b4f673bf9888ff23489430b4"> 1035</a></span>&#160;TDescriptor <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3f0d8b15b4f673bf9888ff23489430b4">TemplatedVocabulary&lt;TDescriptor,F&gt;::getWord</a>(<a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> wid)<span class="keyword"> const</span></div><div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>[wid]-&gt;descriptor;</div><div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;}</div><div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;</div><div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160;</div><div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01043"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#ace5645b42739bea1e3da05c6cff60bad"> 1043</a></span>&#160;<a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ace5645b42739bea1e3da05c6cff60bad">TemplatedVocabulary&lt;TDescriptor, F&gt;::getWordWeight</a>(<a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> wid)<span class="keyword"> const</span></div><div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>[wid]-&gt;weight;</div><div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;}</div><div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160;</div><div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;</div><div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160;<a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">TemplatedVocabulary&lt;TDescriptor, F&gt;::transform</a></div><div class="line"><a name="l01052"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5003af19aacb6a322f7fdc0535eb149"> 1052</a></span>&#160; 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 <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">transform</a>(feature, wid);</div><div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160;  <span class="keywordflow">return</span> wid;</div><div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;}</div><div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;</div><div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160;</div><div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01067"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0"> 1067</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">TemplatedVocabulary&lt;TDescriptor,F&gt;::transform</a>(</div><div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160;  <span class="keyword">const</span> std::vector&lt;TDescriptor&gt;&amp; features, <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;v)<span class="keyword"> const</span></div><div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160;  v.clear();</div><div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;  </div><div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;  <span class="keywordflow">if</span>(<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ad7bbb3cf53f8f9f3610b9b67c551ba8e">empty</a>())</div><div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;  {</div><div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;    <span class="keywordflow">return</span>;</div><div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160; 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 <span class="keywordflow">if</span>(<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#abf03c6430d630674ddca5bab9c120c51">m_weighting</a> == <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aa15d1950b5707de9ac0760c2c6dae48bd">TF</a> || <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#abf03c6430d630674ddca5bab9c120c51">m_weighting</a> == <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aaa3425e88466862008dff6883e07e205d">TF_IDF</a>)</div><div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160;  {</div><div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>&#160;    <span class="keywordflow">for</span>(fit = features.begin(); fit &lt; features.end(); ++fit)</div><div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;    {</div><div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> id;</div><div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> w; </div><div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160;      <span class="comment">// w is the idf value if TF_IDF, 1 if TF</span></div><div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;      </div><div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160;      <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">transform</a>(*fit, <span class="keywordtype">id</span>, w);</div><div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160;      </div><div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>&#160;      <span class="comment">// not stopped</span></div><div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>&#160;      <span class="keywordflow">if</span>(w &gt; 0) v.<a class="code" href="class_d_bo_w2_1_1_bow_vector.html#a3ac92a805b252c93dc6535240d02df47">addWeight</a>(<span class="keywordtype">id</span>, w);</div><div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>&#160;    }</div><div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>&#160;    </div><div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>&#160;    <span class="keywordflow">if</span>(!v.empty() &amp;&amp; !must)</div><div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>&#160;    {</div><div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>&#160;      <span class="comment">// unnecessary when normalizing</span></div><div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>&#160;      <span class="keyword">const</span> <span class="keywordtype">double</span> nd = v.size();</div><div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>&#160;      <span class="keywordflow">for</span>(BowVector::iterator vit = v.begin(); vit != v.end(); vit++) </div><div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>&#160;        vit-&gt;second /= nd;</div><div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>&#160;    }</div><div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>&#160;    </div><div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>&#160;  }</div><div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>&#160;  <span class="keywordflow">else</span> <span class="comment">// IDF || BINARY</span></div><div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>&#160;  {</div><div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>&#160;    <span class="keywordflow">for</span>(fit = features.begin(); fit &lt; features.end(); ++fit)</div><div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160;    {</div><div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> id;</div><div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> w;</div><div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160;      <span class="comment">// w is idf if IDF, or 1 if BINARY</span></div><div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160;      </div><div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160;      <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">transform</a>(*fit, <span class="keywordtype">id</span>, w);</div><div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160;      </div><div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160;      <span class="comment">// not stopped</span></div><div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160;      <span class="keywordflow">if</span>(w &gt; 0) v.<a class="code" href="class_d_bo_w2_1_1_bow_vector.html#a5ddf10e444d10425e5bd3568dc7ffe5e">addIfNotExist</a>(<span class="keywordtype">id</span>, w);</div><div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160; 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 v.clear();</div><div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;  fv.clear();</div><div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160;  </div><div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160;  <span class="keywordflow">if</span>(<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#ad7bbb3cf53f8f9f3610b9b67c551ba8e">empty</a>()) <span class="comment">// safe for subclasses</span></div><div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160;  {</div><div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160;    <span class="keywordflow">return</span>;</div><div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160;  }</div><div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160;  </div><div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160;  <span class="comment">// normalize </span></div><div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160; 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 {</div><div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i_feature = 0;</div><div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;    <span class="keywordflow">for</span>(fit = features.begin(); fit &lt; features.end(); ++fit, ++i_feature)</div><div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160;    {</div><div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> id;</div><div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> nid;</div><div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;      <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> w; 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</div><div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aedde9cc3255e41fd0441055eeb640346">TemplatedVocabulary&lt;TDescriptor,F&gt;::score</a></div><div class="line"><a name="l01201"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#aedde9cc3255e41fd0441055eeb640346"> 1201</a></span>&#160;  (<span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;v1, <span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_bow_vector.html">BowVector</a> &amp;v2) <span class="keyword">const</span></div><div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>&#160;{</div><div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>&#160;  <span class="keywordflow">return</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a34144d0e2056d6ed8b925a2937b67418">m_scoring_object</a>-&gt;<a class="code" href="class_d_bo_w2_1_1_general_scoring.html#a43b3f5fedb19e6a19e17b9813efd17e8">score</a>(v1, v2);</div><div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>&#160;}</div><div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>&#160;</div><div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>&#160;</div><div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">TemplatedVocabulary&lt;TDescriptor,F&gt;::transform</a></div><div class="line"><a name="l01210"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a48a53ffe060c205e44ddd2e173eb96c4"> 1210</a></span>&#160;  (<span class="keyword">const</span> TDescriptor &amp;feature, <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> &amp;<span class="keywordtype">id</span>) <span class="keyword">const</span></div><div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>&#160;{</div><div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>&#160;  <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> weight;</div><div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">transform</a>(feature, <span class="keywordtype">id</span>, weight);</div><div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>&#160;}</div><div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>&#160;</div><div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>&#160;</div><div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01219"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a5af7e18ab438c3fbbb51bd9930c43444"> 1219</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">TemplatedVocabulary&lt;TDescriptor,F&gt;::transform</a>(<span class="keyword">const</span> TDescriptor &amp;feature, </div><div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>&#160;  <a class="code" href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">WordId</a> &amp;word_id, <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> &amp;weight, <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> *nid, <span class="keywordtype">int</span> levelsup)<span class="keyword"> const</span></div><div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>&#160;<span class="keyword"></span>{ </div><div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>&#160;  <span class="comment">// propagate the feature down the tree</span></div><div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>&#160;  vector&lt;NodeId&gt; nodes;</div><div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>&#160;  <span class="keyword">typename</span> vector&lt;NodeId&gt;::const_iterator nit;</div><div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>&#160;</div><div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>&#160;  <span class="comment">// level at which the node must be stored in nid, if given</span></div><div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">int</span> nid_level = <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a> - levelsup;</div><div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>&#160;  <span class="keywordflow">if</span>(nid_level &lt;= 0 &amp;&amp; nid != NULL) *nid = 0; <span class="comment">// root</span></div><div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>&#160;</div><div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>&#160;  <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> final_id = 0; <span class="comment">// root</span></div><div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>&#160;  <span class="keywordtype">int</span> current_level = 0;</div><div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>&#160;</div><div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>&#160;  <span class="keywordflow">do</span></div><div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>&#160;  {</div><div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>&#160;    ++current_level;</div><div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>&#160;    nodes = <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[final_id].children;</div><div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>&#160;    final_id = nodes[0];</div><div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>&#160; </div><div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>&#160;    <span class="keywordtype">double</span> best_d = F::distance(feature, <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[final_id].descriptor);</div><div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>&#160;</div><div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>&#160; 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       }</div><div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>&#160;    }</div><div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>&#160;</div><div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>&#160;</div><div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>&#160;}</div><div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>&#160;</div><div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>&#160;<span class="comment"></span><span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01461"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa8c05732a3c2a063b0a8c1cbc418597a"> 1461</a></span>&#160;<span class="keywordtype">bool</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa8c05732a3c2a063b0a8c1cbc418597a">TemplatedVocabulary&lt;TDescriptor,F&gt;::loadFromBinaryFile</a>(<span class="keyword">const</span> std::string &amp;filename)</div><div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>&#160;{</div><div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>&#160;    ifstream archivoBinario (filename.c_str(), ios::in | ios::binary);</div><div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>&#160;</div><div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>&#160;    <span class="keywordflow">if</span>(archivoBinario.eof()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>&#160;</div><div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.clear();</div><div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.clear();</div><div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> buffer[45];</div><div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>&#160;</div><div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>&#160; 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   }</div><div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>&#160;</div><div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a89d8aa037f2b5c3c5cc953734bb5cb9f">m_scoring</a> = (<a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a>)n1;</div><div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#abf03c6430d630674ddca5bab9c120c51">m_weighting</a> = (<a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a>)n2;</div><div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3244d5a3d0f75ba9c9ae905c5365335d">createScoringObject</a>();</div><div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>&#160;</div><div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>&#160; 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&quot;</span>;</div><div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>&#160;        <span class="keywordflow">if</span>(node.<a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a050a0ee173dd58475dd2ab84e6f215e8">isLeaf</a>())</div><div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>&#160;            f &lt;&lt; 1 &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div><div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>&#160;        <span class="keywordflow">else</span></div><div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>&#160;            f &lt;&lt; 0 &lt;&lt; <span class="stringliteral">&quot; &quot;</span>;</div><div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>&#160;</div><div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>&#160;        f &lt;&lt; F::toString(node.<a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#ab785e994eeae8e6c1d67ee45ad4c8450">descriptor</a>) &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; (double)node.<a class="code" href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#ae1e261135cb7af400f1c4c4795cdba41">weight</a> &lt;&lt; endl;</div><div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>&#160;    }</div><div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>&#160;</div><div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>&#160;    f.close();</div><div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>&#160;}</div><div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>&#160;</div><div class="line"><a name="l01572"></a><span class="lineno"> 1572</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>&#160;</div><div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01575"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a92ca49bd6600bddbad145fb6e0543fa1"> 1575</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a92ca49bd6600bddbad145fb6e0543fa1">TemplatedVocabulary&lt;TDescriptor,F&gt;::save</a>(<span class="keyword">const</span> std::string &amp;filename)<span class="keyword"> const</span></div><div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>&#160;  cv::FileStorage fs(filename.c_str(), cv::FileStorage::WRITE);</div><div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>&#160;  <span class="keywordflow">if</span>(!fs.isOpened()) <span class="keywordflow">throw</span> <span class="keywordtype">string</span>(<span class="stringliteral">&quot;Could not open file &quot;</span>) + filename;</div><div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>&#160;  </div><div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a92ca49bd6600bddbad145fb6e0543fa1">save</a>(fs);</div><div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>&#160;}</div><div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>&#160;</div><div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>&#160;</div><div class="line"><a name="l01585"></a><span class="lineno"> 1585</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01586"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#afdec2031c98b9109451b1454f73348b0"> 1586</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#afdec2031c98b9109451b1454f73348b0">TemplatedVocabulary&lt;TDescriptor,F&gt;::load</a>(<span class="keyword">const</span> std::string &amp;filename)</div><div class="line"><a name="l01587"></a><span class="lineno"> 1587</span>&#160;{</div><div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>&#160;  cv::FileStorage fs(filename.c_str(), cv::FileStorage::READ);</div><div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>&#160;  <span class="keywordflow">if</span>(!fs.isOpened()) <span class="keywordflow">throw</span> <span class="keywordtype">string</span>(<span class="stringliteral">&quot;Could not open file &quot;</span>) + filename;</div><div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>&#160;  </div><div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>&#160;  this-&gt;<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#afdec2031c98b9109451b1454f73348b0">load</a>(fs);</div><div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>&#160;}</div><div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>&#160;</div><div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>&#160;</div><div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01597"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3039529c46f02b795450f4fba2207339"> 1597</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a92ca49bd6600bddbad145fb6e0543fa1">TemplatedVocabulary&lt;TDescriptor,F&gt;::save</a>(cv::FileStorage &amp;f,</div><div class="line"><a name="l01598"></a><span class="lineno"> 1598</span>&#160;  <span class="keyword">const</span> std::string &amp;name)<span class="keyword"> const</span></div><div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>&#160;<span class="keyword"></span>{</div><div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>&#160;  <span class="comment">// Format YAML:</span></div><div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>&#160;  <span class="comment">// vocabulary </span></div><div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>&#160;  <span class="comment">// {</span></div><div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>&#160;  <span class="comment">//   k:</span></div><div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>&#160;  <span class="comment">//   L:</span></div><div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>&#160;  <span class="comment">//   scoringType:</span></div><div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>&#160; 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 <span class="comment">//     }</span></div><div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>&#160;  <span class="comment">//   ]</span></div><div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>&#160;  <span class="comment">//   words</span></div><div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>&#160;  <span class="comment">//   [</span></div><div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>&#160;  <span class="comment">//     {</span></div><div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>&#160;  <span class="comment">//       wordId:</span></div><div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>&#160;  <span class="comment">//       nodeId:</span></div><div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>&#160;  <span class="comment">//     }</span></div><div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>&#160;  <span class="comment">//   ]</span></div><div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>&#160;  <span class="comment">// }</span></div><div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>&#160;  <span class="comment">//</span></div><div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>&#160;  <span class="comment">// The root node (index 0) is not included in the node vector</span></div><div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>&#160;  <span class="comment">//</span></div><div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>&#160;  </div><div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>&#160;  f &lt;&lt; name &lt;&lt; <span class="stringliteral">&quot;{&quot;</span>;</div><div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>&#160;  </div><div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>&#160;  f &lt;&lt; <span class="stringliteral">&quot;k&quot;</span> &lt;&lt; <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a>;</div><div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>&#160; 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 }</div><div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>&#160;  </div><div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>&#160;  f &lt;&lt; <span class="stringliteral">&quot;]&quot;</span>; <span class="comment">// nodes</span></div><div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>&#160;</div><div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>&#160;  <span class="comment">// words</span></div><div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>&#160;  f &lt;&lt; <span class="stringliteral">&quot;words&quot;</span> &lt;&lt; <span class="stringliteral">&quot;[&quot;</span>;</div><div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>&#160;  </div><div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>&#160;  <span class="keyword">typename</span> vector&lt;Node*&gt;::const_iterator wit;</div><div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>&#160; 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(int)<span class="keywordtype">id</span>;</div><div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>&#160;    f &lt;&lt; <span class="stringliteral">&quot;nodeId&quot;</span> &lt;&lt; (int)(*wit)-&gt;id;</div><div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>&#160;    f &lt;&lt; <span class="stringliteral">&quot;}&quot;</span>;</div><div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>&#160;  }</div><div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>&#160;  </div><div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>&#160;  f &lt;&lt; <span class="stringliteral">&quot;]&quot;</span>; <span class="comment">// words</span></div><div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>&#160;</div><div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>&#160;  f &lt;&lt; <span class="stringliteral">&quot;}&quot;</span>;</div><div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>&#160;</div><div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>&#160;}</div><div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>&#160;</div><div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>&#160;</div><div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01694"></a><span class="lineno"><a class="line" href="class_d_bo_w2_1_1_templated_vocabulary.html#a037ba240314ff30f3620fb4de6845c66"> 1694</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#afdec2031c98b9109451b1454f73348b0">TemplatedVocabulary&lt;TDescriptor,F&gt;::load</a>(<span class="keyword">const</span> cv::FileStorage &amp;fs,</div><div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>&#160;  <span class="keyword">const</span> std::string &amp;name)</div><div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>&#160;{</div><div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.clear();</div><div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.clear();</div><div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>&#160;  </div><div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>&#160;  cv::FileNode fvoc = fs[name];</div><div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>&#160;  </div><div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">m_k</a> = (int)fvoc[<span class="stringliteral">&quot;k&quot;</span>];</div><div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">m_L</a> = (int)fvoc[<span class="stringliteral">&quot;L&quot;</span>];</div><div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a89d8aa037f2b5c3c5cc953734bb5cb9f">m_scoring</a> = (<a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">ScoringType</a>)((<span class="keywordtype">int</span>)fvoc[<span class="stringliteral">&quot;scoringType&quot;</span>]);</div><div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#abf03c6430d630674ddca5bab9c120c51">m_weighting</a> = (<a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">WeightingType</a>)((<span class="keywordtype">int</span>)fvoc[<span class="stringliteral">&quot;weightingType&quot;</span>]);</div><div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>&#160;  </div><div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a3244d5a3d0f75ba9c9ae905c5365335d">createScoringObject</a>();</div><div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>&#160;</div><div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>&#160;  <span class="comment">// nodes</span></div><div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>&#160;  cv::FileNode fn = fvoc[<span class="stringliteral">&quot;nodes&quot;</span>];</div><div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>&#160;</div><div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>.resize(fn.size() + 1); <span class="comment">// +1 to include root</span></div><div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[0].id = 0;</div><div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>&#160;</div><div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>&#160;  <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; fn.size(); ++i)</div><div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>&#160;  {</div><div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> nid = (int)fn[i][<span class="stringliteral">&quot;nodeId&quot;</span>];</div><div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> pid = (int)fn[i][<span class="stringliteral">&quot;parentId&quot;</span>];</div><div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a> weight = (<a class="code" href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">WordValue</a>)fn[i][<span class="stringliteral">&quot;weight&quot;</span>];</div><div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>&#160;    <span class="keywordtype">string</span> d = (string)fn[i][<span class="stringliteral">&quot;descriptor&quot;</span>];</div><div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>&#160;    </div><div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[nid].id = nid;</div><div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[nid].parent = pid;</div><div class="line"><a name="l01724"></a><span class="lineno"> 1724</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[nid].weight = weight;</div><div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[pid].children.push_back(nid);</div><div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>&#160;    </div><div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>&#160;    F::fromString(<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[nid].descriptor, d);</div><div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>&#160;  }</div><div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>&#160;  </div><div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>&#160;  <span class="comment">// words</span></div><div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>&#160;  fn = fvoc[<span class="stringliteral">&quot;words&quot;</span>];</div><div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>&#160;  </div><div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>&#160;  <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>.resize(fn.size());</div><div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>&#160;</div><div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>&#160;  <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; fn.size(); ++i)</div><div class="line"><a name="l01736"></a><span class="lineno"> 1736</span>&#160;  {</div><div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> wid = (int)fn[i][<span class="stringliteral">&quot;wordId&quot;</span>];</div><div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>&#160;    <a class="code" href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">NodeId</a> nid = (int)fn[i][<span class="stringliteral">&quot;nodeId&quot;</span>];</div><div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>&#160;    </div><div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[nid].word_id = wid;</div><div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>&#160;    <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">m_words</a>[wid] = &amp;<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">m_nodes</a>[nid];</div><div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>&#160;  }</div><div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>&#160;}</div><div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>&#160;</div><div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>&#160;<span class="comment">// --------------------------------------------------------------------------</span></div><div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>&#160;</div><div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">class</span> TDescriptor, <span class="keyword">class</span> F&gt;</div><div class="line"><a name="l01753"></a><span class="lineno"><a class="line" href="namespace_d_bo_w2.html#aecdf616fe16d2cf09f521a603b9d43f1"> 1753</a></span>&#160;std::ostream&amp; <a class="code" href="namespace_d_bo_w2.html#a06d2058b1bde1cdc49f277fec62073e2">operator&lt;&lt;</a>(std::ostream &amp;os, </div><div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>&#160;  <span class="keyword">const</span> <a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html">TemplatedVocabulary&lt;TDescriptor,F&gt;</a> &amp;voc)</div><div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>&#160;{</div><div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>&#160;  os &lt;&lt; <span class="stringliteral">&quot;Vocabulary: k = &quot;</span> &lt;&lt; voc.<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a027d367760c39de816bee5ff0d969837">getBranchingFactor</a>() </div><div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>&#160;    &lt;&lt; <span class="stringliteral">&quot;, L = &quot;</span> &lt;&lt; voc.<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a5a7d1b3ad0c705705d516a9a144e3f38">getDepthLevels</a>()</div><div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>&#160;    &lt;&lt; <span class="stringliteral">&quot;, Weighting = &quot;</span>;</div><div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>&#160;</div><div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>&#160;  <span class="keywordflow">switch</span>(voc.<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#aadb9343da87e0f00ed3da401c59132b2">getWeightingType</a>())</div><div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>&#160;  {</div><div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aaa3425e88466862008dff6883e07e205d">TF_IDF</a>: os &lt;&lt; <span class="stringliteral">&quot;tf-idf&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aa15d1950b5707de9ac0760c2c6dae48bd">TF</a>: os &lt;&lt; <span class="stringliteral">&quot;tf&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aa5a1c1f7cd866c8bea4551e296298c3bc">IDF</a>: os &lt;&lt; <span class="stringliteral">&quot;idf&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aae517632073c3a0b980558ebb6519d759">BINARY</a>: os &lt;&lt; <span class="stringliteral">&quot;binary&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>&#160;  }</div><div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>&#160;</div><div class="line"><a name="l01768"></a><span class="lineno"> 1768</span>&#160; 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<span class="stringliteral">&quot;L2-norm&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722ad0bd4548b18fb1c165961506e199f38d">CHI_SQUARE</a>: os &lt;&lt; <span class="stringliteral">&quot;Chi square distance&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a607c4948ab28605098d7cedb9bce14ae">KL</a>: os &lt;&lt; <span class="stringliteral">&quot;KL-divergence&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a22de570628b33a2662630def802a23cb">BHATTACHARYYA</a>: os &lt;&lt; <span class="stringliteral">&quot;Bhattacharyya coefficient&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>&#160;    <span class="keywordflow">case</span> <a class="code" href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a14556ffa1d80b1c7540ea68506eb5b56">DOT_PRODUCT</a>: os &lt;&lt; <span class="stringliteral">&quot;Dot product&quot;</span>; <span class="keywordflow">break</span>;</div><div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>&#160;  }</div><div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>&#160;  </div><div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>&#160;  os &lt;&lt; <span class="stringliteral">&quot;, Number of words = &quot;</span> &lt;&lt; voc.<a class="code" href="class_d_bo_w2_1_1_templated_vocabulary.html#a8baad280d6daf74ee43d7cd911363137">size</a>();</div><div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>&#160;</div><div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>&#160;  <span class="keywordflow">return</span> os;</div><div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>&#160;}</div><div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>&#160;</div><div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>&#160;} <span class="comment">// namespace DBoW2</span></div><div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>&#160;</div><div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_abf03c6430d630674ddca5bab9c120c51"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#abf03c6430d630674ddca5bab9c120c51">DBoW2::TemplatedVocabulary::m_weighting</a></div><div class="ttdeci">WeightingType m_weighting</div><div class="ttdoc">Weighting method. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:415</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_aa5f7f829033a49833fe4fb5652b99337"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#aa5f7f829033a49833fe4fb5652b99337">DBoW2::TemplatedVocabulary::m_k</a></div><div class="ttdeci">int m_k</div><div class="ttdoc">Branching factor. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:409</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_ace8155a70fa5163d117dc6a2ef923205"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#ace8155a70fa5163d117dc6a2ef923205">DBoW2::TemplatedVocabulary::getFeatures</a></div><div class="ttdeci">void getFeatures(const vector&lt; vector&lt; TDescriptor &gt; &gt; &amp;training_features, vector&lt; pDescriptor &gt; &amp;features) const</div><div class="ttdoc">Returns a set of pointers to descriptores. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:622</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_aedde9cc3255e41fd0441055eeb640346"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#aedde9cc3255e41fd0441055eeb640346">DBoW2::TemplatedVocabulary::score</a></div><div class="ttdeci">double score(const BowVector &amp;a, const BowVector &amp;b) const</div><div class="ttdoc">Returns the score of two vectors. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1201</div></div>
<div class="ttc" id="_bow_vector_8h_html"><div class="ttname"><a href="_bow_vector_8h.html">BowVector.h</a></div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a40913d67e369e6993c2eab80a968f829"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a40913d67e369e6993c2eab80a968f829">DBoW2::TemplatedVocabulary::pDescriptor</a></div><div class="ttdeci">const TDescriptor * pDescriptor</div><div class="ttdoc">Pointer to descriptor. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:295</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_a082fba9dcf272b78354ffd5b1d58f5fa"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a082fba9dcf272b78354ffd5b1d58f5fa">DBoW2::TemplatedVocabulary::Node::parent</a></div><div class="ttdeci">NodeId parent</div><div class="ttdoc">Parent node (undefined in case of root) </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:307</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a8baad280d6daf74ee43d7cd911363137"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a8baad280d6daf74ee43d7cd911363137">DBoW2::TemplatedVocabulary::size</a></div><div class="ttdeci">virtual unsigned int size() const</div><div class="ttdoc">Returns the number of words in the vocabulary. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1002</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_afdec2031c98b9109451b1454f73348b0"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#afdec2031c98b9109451b1454f73348b0">DBoW2::TemplatedVocabulary::load</a></div><div class="ttdeci">void load(const std::string &amp;filename)</div><div class="ttdoc">Loads the vocabulary from a file. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1586</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_ace5645b42739bea1e3da05c6cff60bad"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#ace5645b42739bea1e3da05c6cff60bad">DBoW2::TemplatedVocabulary::getWordWeight</a></div><div class="ttdeci">virtual WordValue getWordWeight(WordId wid) const</div><div class="ttdoc">Returns the weight of a word. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1043</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_a1339ee00108c4c652cd1ca55a37c3fd3"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a1339ee00108c4c652cd1ca55a37c3fd3">DBoW2::TemplatedVocabulary::Node::Node</a></div><div class="ttdeci">Node()</div><div class="ttdoc">Empty constructor. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:317</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a809f881020a2b953664b1f528828551e"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a809f881020a2b953664b1f528828551e">DBoW2::TemplatedVocabulary::getWordsFromNode</a></div><div class="ttdeci">void getWordsFromNode(NodeId nid, std::vector&lt; WordId &gt; &amp;words) const</div><div class="ttdoc">Returns the ids of all the words that are under the given node id, by traversing any of the branches ...</div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1281</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_bow_vector_html"><div class="ttname"><a href="class_d_bo_w2_1_1_bow_vector.html">DBoW2::BowVector</a></div><div class="ttdoc">Vector of words to represent images. </div><div class="ttdef"><b>Definition:</b> BowVector.h:56</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_aa8c05732a3c2a063b0a8c1cbc418597a"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#aa8c05732a3c2a063b0a8c1cbc418597a">DBoW2::TemplatedVocabulary::loadFromBinaryFile</a></div><div class="ttdeci">bool loadFromBinaryFile(const std::string &amp;filename)</div><div class="ttdoc">Inspirado en loadFromTextFile, realiza las mismas operaciones pero abriendo un archivo binario...</div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1461</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_ab1a0d3283b2d4690a383372ed20bfeb5"><div class="ttname"><a href="namespace_d_bo_w2.html#ab1a0d3283b2d4690a383372ed20bfeb5">DBoW2::WordId</a></div><div class="ttdeci">unsigned int WordId</div><div class="ttdoc">Id of words. </div><div class="ttdef"><b>Definition:</b> BowVector.h:20</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a5de5c8a307aca9a84ffefda2a9bc467aaa3425e88466862008dff6883e07e205d"><div class="ttname"><a href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aaa3425e88466862008dff6883e07e205d">DBoW2::TF_IDF</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:38</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722a22de570628b33a2662630def802a23cb"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a22de570628b33a2662630def802a23cb">DBoW2::BHATTACHARYYA</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:51</div></div>
<div class="ttc" id="namespaceboost_1_1serialization_html_a2461caecae62258618693b30f87de9d9"><div class="ttname"><a href="namespaceboost_1_1serialization.html#a2461caecae62258618693b30f87de9d9">boost::serialization::save</a></div><div class="ttdeci">void save(Archive &amp;ar, const ::cv::Mat &amp;m, const unsigned int version)</div><div class="ttdef"><b>Definition:</b> Serializer.cpp:118</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722a2df432e58efd2a13d4950ee96aa6a20f"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a2df432e58efd2a13d4950ee96aa6a20f">DBoW2::L1_NORM</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:47</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_general_scoring_html_a43b3f5fedb19e6a19e17b9813efd17e8"><div class="ttname"><a href="class_d_bo_w2_1_1_general_scoring.html#a43b3f5fedb19e6a19e17b9813efd17e8">DBoW2::GeneralScoring::score</a></div><div class="ttdeci">virtual double score(const BowVector &amp;v, const BowVector &amp;w) const =0</div><div class="ttdoc">Computes the score between two vectors. </div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a06d2058b1bde1cdc49f277fec62073e2"><div class="ttname"><a href="namespace_d_bo_w2.html#a06d2058b1bde1cdc49f277fec62073e2">DBoW2::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;out, const BowVector &amp;v)</div><div class="ttdef"><b>Definition:</b> BowVector.cpp:88</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a3244d5a3d0f75ba9c9ae905c5365335d"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a3244d5a3d0f75ba9c9ae905c5365335d">DBoW2::TemplatedVocabulary::createScoringObject</a></div><div class="ttdeci">void createScoringObject()</div><div class="ttdoc">Creates an instance of the scoring object accoring to m_scoring. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:464</div></div>
<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdoc">This file is part of ORB-SLAM2. </div></div>
<div class="ttc" id="class_d_bo_w2_1_1_feature_vector_html"><div class="ttname"><a href="class_d_bo_w2_1_1_feature_vector.html">DBoW2::FeatureVector</a></div><div class="ttdoc">Vector of nodes with indexes of local features. </div><div class="ttdef"><b>Definition:</b> FeatureVector.h:21</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a5a7d1b3ad0c705705d516a9a144e3f38"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a5a7d1b3ad0c705705d516a9a144e3f38">DBoW2::TemplatedVocabulary::getDepthLevels</a></div><div class="ttdeci">int getDepthLevels() const</div><div class="ttdoc">Returns the depth levels of the tree (L) </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:191</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_ae67da4c7b30c15ed4faba2ad6ed4549e"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#ae67da4c7b30c15ed4faba2ad6ed4549e">DBoW2::TemplatedVocabulary::getEffectiveLevels</a></div><div class="ttdeci">float getEffectiveLevels() const</div><div class="ttdoc">Returns the real depth levels of the tree on average. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1018</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a9d15f985a0c3badc1518be0fbe663099"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a9d15f985a0c3badc1518be0fbe663099">DBoW2::TemplatedVocabulary::~TemplatedVocabulary</a></div><div class="ttdeci">virtual ~TemplatedVocabulary()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:528</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a53e9e0bcfc25c861815e413a7cf3fa51"><div class="ttname"><a href="namespace_d_bo_w2.html#a53e9e0bcfc25c861815e413a7cf3fa51">DBoW2::LNorm</a></div><div class="ttdeci">LNorm</div><div class="ttdoc">L-norms for normalization. </div><div class="ttdef"><b>Definition:</b> BowVector.h:29</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a5de5c8a307aca9a84ffefda2a9bc467aa15d1950b5707de9ac0760c2c6dae48bd"><div class="ttname"><a href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aa15d1950b5707de9ac0760c2c6dae48bd">DBoW2::TF</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:39</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html">DBoW2::TemplatedVocabulary</a></div><div class="ttdoc">Generic Vocabulary. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:44</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a16735d9e2c8b901f01d541faea67971e"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a16735d9e2c8b901f01d541faea67971e">DBoW2::TemplatedVocabulary::m_L</a></div><div class="ttdeci">int m_L</div><div class="ttdoc">Depth levels. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:412</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_bow_vector_html_a3ac92a805b252c93dc6535240d02df47"><div class="ttname"><a href="class_d_bo_w2_1_1_bow_vector.html#a3ac92a805b252c93dc6535240d02df47">DBoW2::BowVector::addWeight</a></div><div class="ttdeci">void addWeight(WordId id, WordValue v)</div><div class="ttdoc">Adds a value to a word value existing in the vector, or creates a new word with the given value...</div><div class="ttdef"><b>Definition:</b> BowVector.cpp:34</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_ae1e261135cb7af400f1c4c4795cdba41"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#ae1e261135cb7af400f1c4c4795cdba41">DBoW2::TemplatedVocabulary::Node::weight</a></div><div class="ttdeci">WordValue weight</div><div class="ttdoc">Weight if the node is a word. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:303</div></div>
<div class="ttc" id="namespaceboost_1_1serialization_html_a8f2eb183bf258e6d6cf94377d38decfc"><div class="ttname"><a href="namespaceboost_1_1serialization.html#a8f2eb183bf258e6d6cf94377d38decfc">boost::serialization::load</a></div><div class="ttdeci">void load(Archive &amp;ar, ::cv::Mat &amp;m, const unsigned int version)</div><div class="ttdef"><b>Definition:</b> Serializer.cpp:132</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a1338b014b856d0a17e71010f6488548e"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a1338b014b856d0a17e71010f6488548e">DBoW2::TemplatedVocabulary::saveToTextFile</a></div><div class="ttdeci">void saveToTextFile(const std::string &amp;filename) const</div><div class="ttdoc">Saves the vocabulary into a text file. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1550</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a5447d0744100254c4da88ea039fb3414"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a5447d0744100254c4da88ea039fb3414">DBoW2::TemplatedVocabulary::loadFromTextFile</a></div><div class="ttdeci">bool loadFromTextFile(const std::string &amp;filename)</div><div class="ttdoc">Loads the vocabulary from a text file. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1357</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a3915e44667d32130e17791147730b7da"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a3915e44667d32130e17791147730b7da">DBoW2::TemplatedVocabulary::initiateClusters</a></div><div class="ttdeci">virtual void initiateClusters(const vector&lt; pDescriptor &gt; &amp;descriptors, vector&lt; TDescriptor &gt; &amp;clusters) const</div><div class="ttdoc">Creates k clusters from the given descriptors with some seeding algorithm. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:826</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a55fcd7333e591a38e96b91f41bc182f6"><div class="ttname"><a href="namespace_d_bo_w2.html#a55fcd7333e591a38e96b91f41bc182f6">DBoW2::WordValue</a></div><div class="ttdeci">double WordValue</div><div class="ttdoc">Value of a word. </div><div class="ttdef"><b>Definition:</b> BowVector.h:23</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a89d8aa037f2b5c3c5cc953734bb5cb9f"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a89d8aa037f2b5c3c5cc953734bb5cb9f">DBoW2::TemplatedVocabulary::m_scoring</a></div><div class="ttdeci">ScoringType m_scoring</div><div class="ttdoc">Scoring method. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:418</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a3679b5a8f2043021a4faab99ccfe4ebe"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a3679b5a8f2043021a4faab99ccfe4ebe">DBoW2::TemplatedVocabulary::create</a></div><div class="ttdeci">virtual void create(const std::vector&lt; std::vector&lt; TDescriptor &gt; &gt; &amp;training_features)</div><div class="ttdoc">Creates a vocabulary from the training features with the already defined parameters. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:559</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_a0305ad0a8964947347da1d38ef0363ed"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a0305ad0a8964947347da1d38ef0363ed">DBoW2::TemplatedVocabulary::Node::children</a></div><div class="ttdeci">vector&lt; NodeId &gt; children</div><div class="ttdoc">Children. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:305</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_general_scoring_html"><div class="ttname"><a href="class_d_bo_w2_1_1_general_scoring.html">DBoW2::GeneralScoring</a></div><div class="ttdoc">Base class of scoring functions. </div><div class="ttdef"><b>Definition:</b> ScoringObject.h:18</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722a607c4948ab28605098d7cedb9bce14ae"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a607c4948ab28605098d7cedb9bce14ae">DBoW2::KL</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:50</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a5de5c8a307aca9a84ffefda2a9bc467aa5a1c1f7cd866c8bea4551e296298c3bc"><div class="ttname"><a href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aa5a1c1f7cd866c8bea4551e296298c3bc">DBoW2::IDF</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:40</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_general_scoring_html_ab0cadafd50b0f2f559f6325a6944f72f"><div class="ttname"><a href="class_d_bo_w2_1_1_general_scoring.html#ab0cadafd50b0f2f559f6325a6944f72f">DBoW2::GeneralScoring::mustNormalize</a></div><div class="ttdeci">virtual bool mustNormalize(LNorm &amp;norm) const =0</div><div class="ttdoc">Returns whether a vector must be normalized before scoring according to the scoring scheme...</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_ad7bbb3cf53f8f9f3610b9b67c551ba8e"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#ad7bbb3cf53f8f9f3610b9b67c551ba8e">DBoW2::TemplatedVocabulary::empty</a></div><div class="ttdeci">virtual bool empty() const</div><div class="ttdoc">Returns whether the vocabulary is empty (i.e. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1010</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html">DBoW2::TemplatedVocabulary::Node</a></div><div class="ttdoc">Tree node. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:298</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_a62fb0c85332741c114110463252c64e9"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a62fb0c85332741c114110463252c64e9">DBoW2::TemplatedVocabulary::Node::id</a></div><div class="ttdeci">NodeId id</div><div class="ttdoc">Node id. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:301</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_aa4c94955c7e03ec39fc0d9b9ce60009f"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#aa4c94955c7e03ec39fc0d9b9ce60009f">DBoW2::TemplatedVocabulary::initiateClustersKMpp</a></div><div class="ttdeci">void initiateClustersKMpp(const vector&lt; pDescriptor &gt; &amp;descriptors, vector&lt; TDescriptor &gt; &amp;clusters) const</div><div class="ttdoc">Creates k clusters from the given descriptor sets by running the initial step of kmeans++. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:834</div></div>
<div class="ttc" id="_feature_vector_8h_html"><div class="ttname"><a href="_feature_vector_8h.html">FeatureVector.h</a></div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a92ca49bd6600bddbad145fb6e0543fa1"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a92ca49bd6600bddbad145fb6e0543fa1">DBoW2::TemplatedVocabulary::save</a></div><div class="ttdeci">void save(const std::string &amp;filename) const</div><div class="ttdoc">Saves the vocabulary into a file. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1575</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a027d367760c39de816bee5ff0d969837"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a027d367760c39de816bee5ff0d969837">DBoW2::TemplatedVocabulary::getBranchingFactor</a></div><div class="ttdeci">int getBranchingFactor() const</div><div class="ttdoc">Returns the branching factor of the tree (k) </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:185</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_a9f1fcb620025ba6103a47e5c2b169cd6"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a9f1fcb620025ba6103a47e5c2b169cd6">DBoW2::TemplatedVocabulary::Node::Node</a></div><div class="ttdeci">Node(NodeId _id)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:323</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_ab79623d30a8550414e1f4bf916869f05"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#ab79623d30a8550414e1f4bf916869f05">DBoW2::TemplatedVocabulary::HKmeansStep</a></div><div class="ttdeci">void HKmeansStep(NodeId parent_id, const vector&lt; pDescriptor &gt; &amp;descriptors, int current_level)</div><div class="ttdoc">Creates a level in the tree, under the parent, by running kmeans with a descriptor set...</div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:643</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_ab785e994eeae8e6c1d67ee45ad4c8450"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#ab785e994eeae8e6c1d67ee45ad4c8450">DBoW2::TemplatedVocabulary::Node::descriptor</a></div><div class="ttdeci">TDescriptor descriptor</div><div class="ttdoc">Node descriptor. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:309</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a34144d0e2056d6ed8b925a2937b67418"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a34144d0e2056d6ed8b925a2937b67418">DBoW2::TemplatedVocabulary::m_scoring_object</a></div><div class="ttdeci">GeneralScoring * m_scoring_object</div><div class="ttdoc">Object for computing scores. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:421</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722a14556ffa1d80b1c7540ea68506eb5b56"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722a14556ffa1d80b1c7540ea68506eb5b56">DBoW2::DOT_PRODUCT</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:52</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_bow_vector_html_a5ddf10e444d10425e5bd3568dc7ffe5e"><div class="ttname"><a href="class_d_bo_w2_1_1_bow_vector.html#a5ddf10e444d10425e5bd3568dc7ffe5e">DBoW2::BowVector::addIfNotExist</a></div><div class="ttdeci">void addIfNotExist(WordId id, WordValue v)</div><div class="ttdoc">Adds a word with a value to the vector only if this does not exist yet. </div><div class="ttdef"><b>Definition:</b> BowVector.cpp:50</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_aa56418d848932be4583fac6b3021c708"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#aa56418d848932be4583fac6b3021c708">DBoW2::TemplatedVocabulary::Node::word_id</a></div><div class="ttdeci">WordId word_id</div><div class="ttdoc">Word id if the node is a word. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:312</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_feature_vector_html_ae9554bfcbebc85439616de08f47f2238"><div class="ttname"><a href="class_d_bo_w2_1_1_feature_vector.html#ae9554bfcbebc85439616de08f47f2238">DBoW2::FeatureVector::addFeature</a></div><div class="ttdeci">void addFeature(NodeId id, unsigned int i_feature)</div><div class="ttdoc">Adds a feature to an existing node, or adds a new node with an initial feature. </div><div class="ttdef"><b>Definition:</b> FeatureVector.cpp:31</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a3a0fa9c50c0df508759362d6204566f2"><div class="ttname"><a href="namespace_d_bo_w2.html#a3a0fa9c50c0df508759362d6204566f2">DBoW2::NodeId</a></div><div class="ttdeci">unsigned int NodeId</div><div class="ttdoc">Id of nodes in the vocabulary treee. </div><div class="ttdef"><b>Definition:</b> BowVector.h:26</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_af7bf0ecd2d1ecc7d31ddca3aa7d1ddc8"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#af7bf0ecd2d1ecc7d31ddca3aa7d1ddc8">DBoW2::TemplatedVocabulary::setNodeWeights</a></div><div class="ttdeci">void setNodeWeights(const vector&lt; vector&lt; TDescriptor &gt; &gt; &amp;features)</div><div class="ttdoc">Sets the weights of the nodes of tree according to the given features. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:945</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_ad830e1e3e547e5d9d45971662afca3d5"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#ad830e1e3e547e5d9d45971662afca3d5">DBoW2::TemplatedVocabulary::getScoringType</a></div><div class="ttdeci">ScoringType getScoringType() const</div><div class="ttdoc">Returns the scoring method. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:223</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a5de5c8a307aca9a84ffefda2a9bc467a"><div class="ttname"><a href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467a">DBoW2::WeightingType</a></div><div class="ttdeci">WeightingType</div><div class="ttdoc">Weighting type. </div><div class="ttdef"><b>Definition:</b> BowVector.h:36</div></div>
<div class="ttc" id="class_d_utils_1_1_random_html_aa25012101ecbca54025d5430bcf93d86"><div class="ttname"><a href="class_d_utils_1_1_random.html#aa25012101ecbca54025d5430bcf93d86">DUtils::Random::RandomInt</a></div><div class="ttdeci">static int RandomInt(int min, int max)</div><div class="ttdoc">Returns a random int in the range [min..max]. </div><div class="ttdef"><b>Definition:</b> Random.cpp:47</div></div>
<div class="ttc" id="class_d_utils_1_1_random_html_a168e77d82ce1e66c6759e97ef27adbbc"><div class="ttname"><a href="class_d_utils_1_1_random.html#a168e77d82ce1e66c6759e97ef27adbbc">DUtils::Random::SeedRandOnce</a></div><div class="ttdeci">static void SeedRandOnce()</div><div class="ttdoc">Sets the random number seed to the current time only the first time this function is called...</div><div class="ttdef"><b>Definition:</b> Random.cpp:24</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722ad0bd4548b18fb1c165961506e199f38d"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722ad0bd4548b18fb1c165961506e199f38d">DBoW2::CHI_SQUARE</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:49</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a01de3bebec37624439c7d3baf6651ff0"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a01de3bebec37624439c7d3baf6651ff0">DBoW2::TemplatedVocabulary::transform</a></div><div class="ttdeci">virtual void transform(const std::vector&lt; TDescriptor &gt; &amp;features, BowVector &amp;v) const</div><div class="ttdoc">Transforms a set of descriptores into a bow vector. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1067</div></div>
<div class="ttc" id="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node_html_a050a0ee173dd58475dd2ab84e6f215e8"><div class="ttname"><a href="struct_d_bo_w2_1_1_templated_vocabulary_1_1_node.html#a050a0ee173dd58475dd2ab84e6f215e8">DBoW2::TemplatedVocabulary::Node::isLeaf</a></div><div class="ttdeci">bool isLeaf() const</div><div class="ttdoc">Returns whether the node is a leaf node. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:329</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722">DBoW2::ScoringType</a></div><div class="ttdeci">ScoringType</div><div class="ttdoc">Scoring type. </div><div class="ttdef"><b>Definition:</b> BowVector.h:45</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a3f0d8b15b4f673bf9888ff23489430b4"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a3f0d8b15b4f673bf9888ff23489430b4">DBoW2::TemplatedVocabulary::getWord</a></div><div class="ttdeci">virtual TDescriptor getWord(WordId wid) const</div><div class="ttdoc">Returns the descriptor of a word. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1035</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a0b6721fde54bd8cd008f6a120398741e"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a0b6721fde54bd8cd008f6a120398741e">DBoW2::TemplatedVocabulary::stopWords</a></div><div class="ttdeci">virtual int stopWords(double minWeight)</div><div class="ttdoc">Stops those words whose weight is below minWeight. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1321</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_bow_vector_html_acd2dd34023e3053a4cc75d70c8b6ac13"><div class="ttname"><a href="class_d_bo_w2_1_1_bow_vector.html#acd2dd34023e3053a4cc75d70c8b6ac13">DBoW2::BowVector::normalize</a></div><div class="ttdeci">void normalize(LNorm norm_type)</div><div class="ttdoc">L1-Normalizes the values in the vector. </div><div class="ttdef"><b>Definition:</b> BowVector.cpp:62</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a03912634600711fbf70355ed32b07f2c"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a03912634600711fbf70355ed32b07f2c">DBoW2::TemplatedVocabulary::getParentNode</a></div><div class="ttdeci">virtual NodeId getParentNode(WordId wid, int levelsup) const</div><div class="ttdoc">Returns the id of the node that is &quot;levelsup&quot; levels from the word given. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:1266</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a1665546b54f954d2d54d59a6982df3ca"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a1665546b54f954d2d54d59a6982df3ca">DBoW2::TemplatedVocabulary::m_words</a></div><div class="ttdeci">std::vector&lt; Node * &gt; m_words</div><div class="ttdoc">Words of the vocabulary (tree leaves) this condition holds: m_words[wid]-&gt;word_id == wid...</div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:428</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a9b74d107b7dc6142cbed4e6ef44a8519"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a9b74d107b7dc6142cbed4e6ef44a8519">DBoW2::TemplatedVocabulary::createWords</a></div><div class="ttdeci">void createWords()</div><div class="ttdoc">Create the words of the vocabulary once the tree has been built. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:919</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_a5de5c8a307aca9a84ffefda2a9bc467aae517632073c3a0b980558ebb6519d759"><div class="ttname"><a href="namespace_d_bo_w2.html#a5de5c8a307aca9a84ffefda2a9bc467aae517632073c3a0b980558ebb6519d759">DBoW2::BINARY</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:41</div></div>
<div class="ttc" id="namespace_d_bo_w2_html_aa252a592dd607c6e60dede06ceef2722ad1a4e066e848e5247e4d94dd3e08f509"><div class="ttname"><a href="namespace_d_bo_w2.html#aa252a592dd607c6e60dede06ceef2722ad1a4e066e848e5247e4d94dd3e08f509">DBoW2::L2_NORM</a></div><div class="ttdef"><b>Definition:</b> BowVector.h:48</div></div>
<div class="ttc" id="namespace_d_bo_w2_html"><div class="ttname"><a href="namespace_d_bo_w2.html">DBoW2</a></div><div class="ttdoc">File: BowVector.cpp Date: March 2011 Author: Dorian Galvez-Lopez Description: bag of words vector Lic...</div><div class="ttdef"><b>Definition:</b> BowVector.cpp:18</div></div>
<div class="ttc" id="_scoring_object_8h_html"><div class="ttname"><a href="_scoring_object_8h.html">ScoringObject.h</a></div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_aadb9343da87e0f00ed3da401c59132b2"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#aadb9343da87e0f00ed3da401c59132b2">DBoW2::TemplatedVocabulary::getWeightingType</a></div><div class="ttdeci">WeightingType getWeightingType() const</div><div class="ttdoc">Returns the weighting method. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:217</div></div>
<div class="ttc" id="class_d_bo_w2_1_1_templated_vocabulary_html_a82be6d310eae6f4f57a72d340489320b"><div class="ttname"><a href="class_d_bo_w2_1_1_templated_vocabulary.html#a82be6d310eae6f4f57a72d340489320b">DBoW2::TemplatedVocabulary::m_nodes</a></div><div class="ttdeci">std::vector&lt; Node &gt; m_nodes</div><div class="ttdoc">Tree nodes. </div><div class="ttdef"><b>Definition:</b> TemplatedVocabulary.h:424</div></div>
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